Draft-gear.



C. A. CARSCADIN & G. A. WOODMAN.

DRAFT GEAR.

APPLICATION FILED MAR. 18, I916.

1,Q39,%60I, Patented Sept. 11, 1917.

CHARLES A. CARSGADIN AND A. WOODMAN, OF CHICAGO, ILLINOIS, ASSIGNORS, BYMESNE ASSIGNMENTS, T6 AMERICAN STEEL FOUNDRIES, OF CHICAGO, ILLINOIS,

A. CORPOBATIQN OF NEW JERSEY.

DRAFT-GEAR.

Application filed March 18, 1916.

To all whom it may concern:

Be it known that we, CHARLES A. Cans- CADIN and Gnonen A. WoonMAN,citizens of the United States, both residing at Chicago, in the countyof Cook and State of Illinois, have jointly invented certain new anduseful Improvements in Draft-Gears, of which the following is aspecification. I

LhlS invention relates in general to draft gears and more particularlyto that type of draft gears in which tandem springs are employed both ofwhich are utilized in independently transferring the pulling and buffingforces from the draw-bar to the draft ZLIHIS.

It is an object of our invention to provide means employing a minimumnumber of relatively simple and inexpensive parts for transferring theforces applied to the drawbar directly to a plurality of springsarranged in tandem and thence to the draft arms at a plurality ofpoints.

A further object of our invention is to provide a draft gearin whichrigid connections between the butt of the draw-bar and the yoke areeliminated and whereby pulling and bufiing forces are transferred fromthe draw-bar to the draft arms simultaneously at a plurality of points.

Further objects and advantages of our invention will be apparent as itis better understood by reference to the following specification whenread in connection with the accompanying drawing, illustrating thepreferred embodiment thereof, in which Figure 1 is a longitudinalvertical section through a draft gear according to our in vention;

Fig. 2 is a longitudinal horizontal sectio through the structureillustrated in Fig. 1;

Fig. 3 is a view in perspective of the yoke, and

Fig. 4: is a transverse vertical section through the yoke adjacent theintermediately disposed integral member.

Referring to the drawings, 1 indicates a drawbar provided with a butt 2which is adapted to be embraced by the end of the U-shaped yoke 3 andheld from movement in one direction longitudinally thereof by the lugs 1at the forward end of the yoke 3. The butt 2 is prevented from lateraldis placement in one direction by a plate 5 integral with the arms ofthe yoke 3 at one Specification of Letters Patent.

Patented Sept. 11, 191?.

Serial No. 850,063.

side thereof adjacent the lugs 1. A remov able member 6, slidablyengaging grooves 7 1n the arms of the yoke 3 and held in position by abolt 8 disposed therethrough and through a lug 9 on one arm of the yoke3, prevents lateral displacement of the butt 2 in the oppositedirection. The butt 2 is thus loosely held in the end of the yoke 3.

A plate 10 is formed integrally with the arms of the yoke 3 intermediatethe ends thereof extending across the yoke and connecting the arms. Theplate 10 is provided with extensions 11 beyond the sides of the arms.Follower plates 12, 18 and 1 1 are loosely mounted between the arms ofthe yoke 3 and springs 15 and 16 are disposed, respectively, between thefollower plates 12 and 13 and between the follower plate 1 1 and theintermediately disposed integral plate 10. An opening 17 is provided inthe plate 10 and a plunger 18 is disposed in this opening and engagesthe follower plates 13 and 14 on either side of the plate 10.

Disposed on either side of the yoke 3 and secured in any suitable mannerto the body of the yoke are the oppositely disposed draft arms 19provided with lugs 20 forming shoulders against which the intermediatelydisposed integral plate 10 and the follower plates 12, 13 and ltnormally rest. The lugs 20 prevent rearward movement .of the followerplate 12 and of the yoke 3 through engagement of the integral plate 10therewith under buffing stresses. The lugs 20 also prevent forwardmovement of the follower plates 13 and 1 1 under pulling stresses.

The operation of our invention will. be

apparent from the following brief descrip tion thereof. When pullingforces are exerted 0n the draw-bar 1 the yoke 3 will be drawn forwardlycarrying the integral plate 10 and the follower plate 12 to compress thesprings 16 and 15, respectively, against the follower plates 1a and 13which are held from forward movement by the lugs 20 on the draft arms19. Upon the application of bufling forces to the draw-bar 1 the butt 2thereof will move rearwardly in the yoke carrying with it the followerplates let and 13, the latter being actuated through the plunger 18. Thesprings 16 and 15 will be compressed against the integral plate 10 andthe follower plate 12 which are held from rearward movement by the lugs20 on the draft arms 19. In either case the forces are transferred fromthe draw-bar through the springs integrally to the draft arms at aplurality of points.

It will be readily appreciated that we have perfected a draft gear ofrelatively simple and inexpensive construction, which is adapted toperform the necessary functions in a simple and desirable manner andthat various changes may bermadein the form, construction andarrangement of the parts without departing from the spirit and scopeofthe invention or sacrificing any of its material advantages, the formhereinbefore disclosed being merely a preferred embodiment thereof.

We claim:

1. A yoke for draft gears comprising a U-shaped body member, means forconnecting a draw-bar to one end of said yoke, and a plate integralvwith, extending transversely of, and connecting the arms of said body,member intermediate the ends thereof and projectingbeyond both sides ofsaid arms, the projecting portions of. said plate forming abruptshoulders for engagement with the draft arms.

2. In a device of the characterdescribed, the combination of a yokecomprising a U- shaped body member, means for connecting a draw-bar toone end of said yoke to per- 'mit relative movement of the draw-bar inone direction, a plate integral with and connecting the arms of saidbody member intermediate the ends thereof and projecting beyond bothsides of said arms, follower plates loosely disposed between the arms ofsaid body member, springs disposed between one pair of said followerplates and between the remaining follower plate and the intermediatelydisposed integral plate, an opening in saidintermediately disposedintegral plate, and means disposed in said opening and engaging afollower plate on either side thereof.

3. In a device of the character described,

the combination of oppositely disposed draft arms, each provided with aplurality of lugs, a yoke comprising a U-shaped body member, means forconnecting a draw-bar to one end of said yoke to permit relative movement of the draw-bar in one direction, a plate integral with andconnecting the arms of said body member intermediate the ends thereofand projecting beyond both sides of said arms to engage one pair of saidlugs, follower plates loosely disposed between the arms of said bodymember and each engaging a pair of said lugs, springs disposed betweenone pair of said follower plates and between the remaining followerplate and the intermediatelydisposed integral plat-e, an opening in theintermediately disposed integral plate, and means disposed in saidopening and engaging a follower plate on either side thereof. V r

at. In a device of the character described, the combination ofoppositely disposed draft arms, each provided with a plurality of lugs,a yoke comprisinga U-shaped body member, means for connecting adraw-barto one end of said yoke, a member integral with and connectingthe arms of saidbodymember intermediate the ends thereof and projectingbeyond the sides of said arms to engage one pair of said lugs, followerplates loosely disposed between the armsof said body member and eachengaging a pair of saidlngs, springs disposed between one pair of saidfollower plates and between the remaining follower plate and theintermediately disposed integral member, an opening in saidintermediately disposed integral member, and a plunger disposed in saidopening and "engaging a follower plate on either side thereof.

CHARLES A. CARSCADIN. GEORGE A. WVOODMAN.

Witnesses:

M. A. Kmnm, ERNEST H; MERCHANT.

Copies of this patent may be obtained for five cents eah, by addressingthe Commissioner of Patents.

Washington, 13,0.

